: For student projects, a dichotomous key helps identify algae by asking a series of "yes or no" questions about its features. Algae Corner: How to Identify Different Algae Types
Chara (skunkweed) grows from the bottom and often has a strong skunk or garlic-like smell. 2. Check the Color Easy identification of freshwater algae
Color provides a major clue about the pigments the algae uses for photosynthesis: : For student projects, a dichotomous key helps
First, look at how the algae is structured in the water. Most common types fall into these three categories: Check the Color Color provides a major clue
: These look like hair-like strands or tangled mats. Spirogyra often feels slick and slimy. Pithophora feels "cottony" and coarse.
: Diatoms often feel gritty (like sand) because of their glass-like silica shells. Identification Resources
For a more precise identification, you can use specialized tools: